include/uapi/linux/tipc.h

   1 /*
   2  * include/uapi/linux/tipc.h: Header for TIPC socket interface
   3  *
   4  * Copyright (c) 2003-2006, Ericsson AB
   5  * Copyright (c) 2005, 2010-2011, Wind River Systems
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the names of the copyright holders nor the names of its
  17  *    contributors may be used to endorse or promote products derived from
  18  *    this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #ifndef _LINUX_TIPC_H_
  38 #define _LINUX_TIPC_H_
  39
  40 #include <linux/types.h>
  41 #include <linux/sockios.h>
  42
  43 /*
  44  * TIPC addressing primitives
  45  */
  46
  47 struct tipc_portid {
  48         __u32 ref;
  49         __u32 node;
  50 };
  51
  52 struct tipc_name {
  53         __u32 type;
  54         __u32 instance;
  55 };
  56
  57 struct tipc_name_seq {
  58         __u32 type;
  59         __u32 lower;
  60         __u32 upper;
  61 };
  62
  63 static inline __u32 tipc_addr(unsigned int zone,
  64                               unsigned int cluster,
  65                               unsigned int node)
  66 {
  67         return (zone << 24) | (cluster << 12) | node;
  68 }
  69
  70 static inline unsigned int tipc_zone(__u32 addr)
  71 {
  72         return addr >> 24;
  73 }
  74
  75 static inline unsigned int tipc_cluster(__u32 addr)
  76 {
  77         return (addr >> 12) & 0xfff;
  78 }
  79
  80 static inline unsigned int tipc_node(__u32 addr)
  81 {
  82         return addr & 0xfff;
  83 }
  84
  85 /*
  86  * Application-accessible port name types
  87  */
  88
  89 #define TIPC_CFG_SRV            0       /* configuration service name type */
  90 #define TIPC_TOP_SRV            1       /* topology service name type */
  91 #define TIPC_LINK_STATE         2       /* link state name type */
  92 #define TIPC_RESERVED_TYPES     64      /* lowest user-publishable name type */
  93
  94 /*
  95  * Publication scopes when binding port names and port name sequences
  96  */
  97
  98 #define TIPC_ZONE_SCOPE         1
  99 #define TIPC_CLUSTER_SCOPE      2
 100 #define TIPC_NODE_SCOPE         3
 101
 102 /*
 103  * Limiting values for messages
 104  */
 105
 106 #define TIPC_MAX_USER_MSG_SIZE  66000U
 107
 108 /*
 109  * Message importance levels
 110  */
 111
 112 #define TIPC_LOW_IMPORTANCE             0
 113 #define TIPC_MEDIUM_IMPORTANCE          1
 114 #define TIPC_HIGH_IMPORTANCE            2
 115 #define TIPC_CRITICAL_IMPORTANCE        3
 116
 117 /*
 118  * Msg rejection/connection shutdown reasons
 119  */
 120
 121 #define TIPC_OK                 0
 122 #define TIPC_ERR_NO_NAME        1
 123 #define TIPC_ERR_NO_PORT        2
 124 #define TIPC_ERR_NO_NODE        3
 125 #define TIPC_ERR_OVERLOAD       4
 126 #define TIPC_CONN_SHUTDOWN      5
 127
 128 /*
 129  * TIPC topology subscription service definitions
 130  */
 131
 132 #define TIPC_SUB_PORTS          0x01    /* filter for port availability */
 133 #define TIPC_SUB_SERVICE        0x02    /* filter for service availability */
 134 #define TIPC_SUB_CANCEL         0x04    /* cancel a subscription */
 135
 136 #define TIPC_WAIT_FOREVER       (~0)    /* timeout for permanent subscription */
 137
 138 struct tipc_subscr {
 139         struct tipc_name_seq seq;       /* name sequence of interest */
 140         __u32 timeout;                  /* subscription duration (in ms) */
 141         __u32 filter;                   /* bitmask of filter options */
 142         char usr_handle[8];             /* available for subscriber use */
 143 };
 144
 145 #define TIPC_PUBLISHED          1       /* publication event */
 146 #define TIPC_WITHDRAWN          2       /* withdraw event */
 147 #define TIPC_SUBSCR_TIMEOUT     3       /* subscription timeout event */
 148
 149 struct tipc_event {
 150         __u32 event;                    /* event type */
 151         __u32 found_lower;              /* matching name seq instances */
 152         __u32 found_upper;              /*    "      "    "     "      */
 153         struct tipc_portid port;        /* associated port */
 154         struct tipc_subscr s;           /* associated subscription */
 155 };
 156
 157 /*
 158  * Socket API
 159  */
 160
 161 #ifndef AF_TIPC
 162 #define AF_TIPC         30
 163 #endif
 164
 165 #ifndef PF_TIPC
 166 #define PF_TIPC         AF_TIPC
 167 #endif
 168
 169 #ifndef SOL_TIPC
 170 #define SOL_TIPC        271
 171 #endif
 172
 173 #define TIPC_ADDR_NAMESEQ       1
 174 #define TIPC_ADDR_MCAST         1
 175 #define TIPC_ADDR_NAME          2
 176 #define TIPC_ADDR_ID            3
 177
 178 struct sockaddr_tipc {
 179         unsigned short family;
 180         unsigned char  addrtype;
 181         signed   char  scope;
 182         union {
 183                 struct tipc_portid id;
 184                 struct tipc_name_seq nameseq;
 185                 struct {
 186                         struct tipc_name name;
 187                         __u32 domain;
 188                 } name;
 189         } addr;
 190 };
 191
 192 /*
 193  * Ancillary data objects supported by recvmsg()
 194  */
 195
 196 #define TIPC_ERRINFO    1       /* error info */
 197 #define TIPC_RETDATA    2       /* returned data */
 198 #define TIPC_DESTNAME   3       /* destination name */
 199
 200 /*
 201  * TIPC-specific socket option values
 202  */
 203
 204 #define TIPC_IMPORTANCE         127     /* Default: TIPC_LOW_IMPORTANCE */
 205 #define TIPC_SRC_DROPPABLE      128     /* Default: based on socket type */
 206 #define TIPC_DEST_DROPPABLE     129     /* Default: based on socket type */
 207 #define TIPC_CONN_TIMEOUT       130     /* Default: 8000 (ms)  */
 208 #define TIPC_NODE_RECVQ_DEPTH   131     /* Default: none (read only) */
 209 #define TIPC_SOCK_RECVQ_DEPTH   132     /* Default: none (read only) */
 210
 211 /*
 212  * Maximum sizes of TIPC bearer-related names (including terminating NULL)
 213  * The string formatting for each name element is:
 214  * media: media
 215  * interface: media:interface name
 216  * link: Z.C.N:interface-Z.C.N:interface
 217  *
 218  */
 219
 220 #define TIPC_MAX_MEDIA_NAME     16
 221 #define TIPC_MAX_IF_NAME        16
 222 #define TIPC_MAX_BEARER_NAME    32
 223 #define TIPC_MAX_LINK_NAME      60
 224
 225 #define SIOCGETLINKNAME         SIOCPROTOPRIVATE
 226
 227 struct tipc_sioc_ln_req {
 228         __u32 peer;
 229         __u32 bearer_id;
 230         char linkname[TIPC_MAX_LINK_NAME];
 231 };
 232 #endif